In February 1943, LIFE magazine published a series of photographs from Guadalcanal—the largest of the Solomon Islands and the site of the Allies’ first, pivotal offensive in the Pacific during World War II.
One of those pictures, made by a 25-year-old LIFE photographer named Ralph Morse, instantly struck a nerve with the magazine’s millions of readers. Seven decades later, it remains one of the most unsettling images to emerge from any war. Morse’s picture (the first in this gallery) of a severed Japanese soldier’s head impaled on a tank captures more graphically and immediately than volumes of words ever could the relentless and often casual barbarity of war.
Here, seven decades after the end of that critical campaign, LIFE.com presents not only Morse’s memories of how he made that photograph but also other pictures from Guadalcanal, photos that ran in LIFE and many more (by Morse and two other staffers, the brothers Joe and Frank Scherschel) that were never published in the magazine.
The caption that accompanied Morse’s disquieting photo in the Feb. 1, 1943, issue of LIFE read, “A Japanese soldier’s skull is propped up on a burned-out Jap [sic] tank by U.S. troops. Fire destroyed the rest of the corpse.”
Morse, however—still remarkably spry at 96—remembers it a bit differently. As anyone with even a passing knowledge of World War II knows, U.S. troops (and troops of every other country who fought in the long, brutal conflict) sometimes engaged in the sort of grisly behavior evinced in Morse’s photograph. But in the photographer’s recollections of that day, it seemed just as likely that the Japanese were the ones who placed the torched skull on that ruined tank as a gruesome trap for curious Americans.